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1. Efficient removal of Cr(VI) by a 3D Z-scheme TiO2-ZnxCd1-xS graphene aerogel via synergy of adsorption and photocatalysis under visible light

Author:
Qianwei Liang; Xin Chen; Ruina Liu; Ke Xu; Hanjin Luo
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 360-370
ISSN:
1001-0742
Subject:
virulence,   etc   ; adsorption; aerogels; graphene; graphene oxide; irradiation; light; photocatalysis; photocatalysts; synergism; wavelengths; China;     Show all 12 Subjects
Abstract:
... Efficient and robust photocatalysts for environmental pollutants removal with outstanding stability have great significance. Herein, we report a kind of three dimensional (3D) photocatalyst presented as Z-scheme heterojunction, which combining TiO₂ and ZnₓCd₁₋ₓS with graphene aerogel to contrast TiO₂-ZnₓCd₁₋ₓS graphene aerogel (TSGA, x=0.5) through a moderate hydrothermal process. The as-prepared ...
DOI:
10.1016/j.jes.2021.09.037

2. Proteomic and mutagenic analyses for cross-protective mechanisms on ethanol adaptation to freezing stress in Salmonella Enteritidis

Author:
Shoukui He; Karen Fong; Chunlei Shi; Xianming Shi
Source:
Food control 2023 v.144 pp. 109376
ISSN:
0956-7135
Subject:
virulence,   etc   ; ABC transporters; Salmonella Enteritidis; cross immunity; ethanol; food safety; hydrolases; metabolism; mutagens; proteomics; ribosomes;     Show all 11 Subjects
Abstract:
... Mechanism characterization on cross protection between different stresses is important for microbial intervention optimizations to ensuring food safety. In our previous work, ethanol adaptation was found to induce cross-protection against freezing stress in Salmonella Enteritidis. The current work aimed to uncover the underlying mechanisms of this phenomenon using proteomic and mutagenic technique ...
DOI:
10.1016/j.foodcont.2022.109376

3. Anti-Streptococcus mutans, anti-adherence and anti-acidogenic activity of Uvaria chamae P. Beauv

Author:
M. Madiba; B.B. Oluremi; Z. Gulube; O.O. Oderinlo; M. Marimani; P.M. Osamudiamen; M. Patel
Source:
Journal of ethnopharmacology 2023 v.300 pp. 115673
ISSN:
0378-8741
Subject:
virulence,   etc   ; Streptococcus mutans; Uvaria; antibacterial properties; bark; biofilm; dental caries; medicinal plants; methylene chloride; mouth; pathogens; phytochemicals; polysaccharides; proanthocyanidins; root extracts; solvents; traditional medicine;     Show all 17 Subjects
Abstract:
... Streptococcus mutans a key pathogen, produces biofilm, acids and extracellular polysaccharides in the oral cavity; which leads to the development of dental caries. Control of these pathogenic markers can prevent dental caries. Uvaria chamae P. Beauv. is a medicinal plant traditionally used for many ailments including oral infections. Root, leaves and bark extracts has proven antibacterial activity ...
DOI:
10.1016/j.jep.2022.115673

4. Functional insights of a two-component system sensor kinase GacS in a fish pathogen, Pseudomonas plecoglossicida

Author:
Su-Ming Zhou; Yan Wang; Feng-Ling Shu; Zhen Tao; Xiao Xie; Jia-Song Xie; Rong-Rong Ma; Fei Yin
Source:
Aquaculture 2023 v.562 pp. 738866
ISSN:
0044-8486
Subject:
virulence,   etc   ; Larimichthys crocea; Pseudomonas plecoglossicida; adhesion; aquaculture; biofilm; blood serum; chemotaxis; complement; fish; granuloma; kidneys; metabolism; models; mutants; pathogens; phenotype; sequence analysis; transcriptome; transcriptomics;     Show all 20 Subjects
Abstract:
... Pseudomonas plecoglossicida is an important pathogenic bacterial species in aquaculture, causing visceral granulomas in large yellow croaker (Larimichthys crocea) and several other economically important fish species. The GacS/GacA is a two-component regulatory system (TCS) primarily found in Pseudomonads for its role in virulence, quorum sensing, and biofilm formation. To investigate the potentia ...
DOI:
10.1016/j.aquaculture.2022.738866

5. Unraveling the mechanism of the synergistic antimicrobial effect of cineole and carvacrol on Escherichia coli O157:H7 inhibition and its application on fresh-cut cucumbers

Author:
Keren Agyekumwaa Addo; Hui Li; Yigang Yu; Xinglong Xiao
Source:
Food control 2023 v.144 pp. 109339
ISSN:
0956-7135
Subject:
virulence,   etc   ; DNA; Escherichia coli O157; Shiga toxin; antimicrobial properties; bacteria; biofilm; carvacrol; cineole; exopolysaccharides; flagellum; food safety; fresh produce; genes; intimin; mechanism of action; quorum sensing; sanitizers; transcription (genetics);     Show all 19 Subjects
Abstract:
... The objective of this study was to evaluate the mechanism of the synergistic antimicrobial effect of cineole (CN) and carvacrol (CR) on E. coli and its application on fresh-cut cucumbers. Herein, the CN/CR synergy could effectively inhibit E. coli by destroying its bacterial cell structure and causing the leakage of intracellular organic matters. For the first time, CN/CR synergy interaction on E. ...
DOI:
10.1016/j.foodcont.2022.109339

6. Ni/Ni(OH)2-rGO nanocomposites sensor for the detection of long forgotten mycotoxin, xanthomegnin

Author:
P.D. Priya Swetha; A. Nikitha; M Manjunath Shenoy; Yoon-Bo Shim; K. Sudhakara Prasad
Source:
Talanta 2023 v.253 pp. 123953
ISSN:
0039-9140
Subject:
virulence,   etc   ; Aspergillus; Penicillium; Trichophyton rubrum; X-ray photoelectron spectroscopy; death; detection limit; electrochemistry; electron microscopy; energy-dispersive X-ray analysis; glassy carbon electrode; graphene oxide; immunosuppression; keratinophilic fungi; livestock; mutagenicity; mycoses; mycotoxins; nanocomposites; nanoparticles; nickel; secondary metabolites; ultraviolet-visible spectroscopy;     Show all 23 Subjects
Abstract:
... Xanthomegnin, a known fungal toxin, secondary metabolite, and pigment diffuses from the dermatophytes has gained attention as local virulence factor because of the mutagenicity, toxicity, cytocidal, and immunosuppressive properties. Not only as a dermatophyte in skin related disorders, the production of xanthomegnin is implicated as a powerful diagnostic marker in patients suffering from ocular my ...
DOI:
10.1016/j.talanta.2022.123953

7. Virulence of Acinetobacter baumannii in proteins moonlighting

Author:
A. S. Smiline Girija; Pitchaipillai Sankar Ganesh
Source:
Archives of microbiology 2022 v.204 no.1 pp. 96
ISSN:
0302-8933
Subject:
virulence,   etc   ; Acinetobacter baumannii; microbiology;     Show all 3 Subjects
Abstract:
... The diverse function of the moonlighting proteins in Acinetobacter baumannii is highly associated with its virulence that had spurred renewed attention in recent years. The existing and newly formed hypothetical moonlighting proteins, evolve without jeopardizing the structural constraints of their original roles. It is yet uncertain and undefined to lucidly describe the functions of the moonlighti ...
DOI:
10.1007/s00203-021-02721-9

8. Antimicrobial Resistance and Increased Virulence of Salmonella

Author:
Bijay K. Khajanchi; Steven L. Foley
Source:
Microorganisms 2022 v.10 no.9 pp. -
ISSN:
2076-2607
Subject:
virulence,   etc   ; Salmonella; antibiotic resistance;     Show all 3 Subjects
Abstract:
... This special issue of Microorganisms highlights the importance of antimicrobial resistance (AMR) and increased virulence of Salmonella with multiple research papers [...] ...
DOI:
10.3390/microorganisms10091829

9. Viral Aggregation: The Knowns and Unknowns

Author:
Swechchha Pradhan; Arvind Varsani; Chloe Leff; Carter J. Swanson; Rizal F. Hariadi
Source:
Viruses 2022 v.14 no.2 pp. -
ISSN:
1999-4915
Subject:
virulence,   etc   ; evolution; pathogenesis; therapeutics;     Show all 4 Subjects
Abstract:
... Viral aggregation is a complex and pervasive phenomenon affecting many viral families. An increasing number of studies have indicated that it can modulate critical parameters surrounding viral infections, and yet its role in viral infectivity, pathogenesis, and evolution is just beginning to be appreciated. Aggregation likely promotes viral infection by increasing the cellular multiplicity of infe ...
DOI:
10.3390/v14020438

10. Overview of VBNC, a survival strategy for microorganisms

Author:
Özge Kaygusuz İzgördü; Cihan Darcan; Ergin Kariptaş
Source:
3 Biotech 2022 v.12 no.11 pp. 307
ISSN:
2190-572X
Subject:
virulence,   etc   ; food safety; public health;     Show all 3 Subjects
Abstract:
... Microorganisms are exposed to a wide variety of stress factors in their natural environments. Under that stressful conditions, they move into a viable but nonculturable (VBNC) state to survive and maintain the vitality. At VBNC state, microorganisms cannot be detected by traditional laboratory methods, but they can be revived under appropriate conditions. Therefore, VBNC organisms cause serious fo ...
DOI:
10.1007/s13205-022-03371-4

11. Distribution of CRISPR in Escherichia coli Isolated from Bulk Tank Milk and Its Potential Relationship with Virulence

Author:
Hyo-Jung Kang; Young-Ju Lee
Source:
Animals 2022 v.12 no.4 pp. -
ISSN:
2076-2615
Subject:
virulence,   etc   ; Escherichia coli; bulk milk; phylogeny;     Show all 4 Subjects
Abstract:
... Escherichia coli is one of the most common causes of mastitis on dairy farms around the world, but its clinical severity is determined by a combination of virulence factors. Recently, clustered regularly interspaced short palindromic repeat (CRISPR) arrays have been reported as a novel typing method because of their usefulness in discriminating pathogenic bacterial isolates. Therefore, this study ...
DOI:
10.3390/ani12040503

12. Whole Genome Resources of 17 Curtobacterium flaccumfaciens Strains Including Pathotypes of C. flaccumfaciens pv. betae, C. flaccumfaciens pv. oortii, and C. flaccumfaciens pv. poinsettiae

Author:
Ebrahim Osdaghi; Geraldine Taghouti; Cecile Dutrieux; S. Mohsen Taghavi; Amal Fazliarab; Martial Briand; Marion Fischer Le Saux; Perrine Portier; Marie-Agnes Jacques
Source:
Molecular plant-microbe interactions 2022 v.35 no.4 pp. 352-356
ISSN:
1943-7706
Subject:
virulence,   etc   ; genome; genomics; pathotypes; phylogeny; taxonomy;     Show all 6 Subjects
Abstract:
... Curtobacterium flaccumfaciens complex species in the family Microbacteriaceae encompasses a group of plant-pathogenic actinobacterial strains affecting annual crops and ornamental plants. The species includes five pathovars, namely C. flaccumfaciens pv. betae, C. flaccumfaciens pv. flaccumfaciens, C. flaccumfaciens pv. ilicis, C. flaccumfaciens pv. oortii, and C. flaccumfaciens pv. poinsettiae. De ...
DOI:
10.1094/MPMI-11-21-0282-A

13. New tools for the new bug Candida auris

Author:
Alexander Lorenz; Nicolas Papon
Source:
Trends in microbiology 2022 v.30 no.3 pp. 203-205
ISSN:
0966-842X
Subject:
virulence,   etc   ; Candida; pathogens; reverse genetics; yeasts;     Show all 5 Subjects
Abstract:
... Candida auris is a recently emerged yeast pathogen of humans causing severe hospital-acquired systemic infections. It is of the utmost importance to understand the genetic and cellular basis of its virulence and pathogenicity. In a recent study, Santana and O’Meara generated forward and reverse genetic tools to manipulate C. auris. ...
DOI:
10.1016/j.tim.2022.01.010

14. Alternately Rearing with Susceptible Variety Can Delay the Virulence Development of Insect Pests to Resistant Varieties

Author:
Gu Gong; Yu-Dan Zhang; Zhen-Fei Zhang; Wei-Jian Wu
Source:
Agriculture (Basel) 2022 v.12 no.7 pp. -
ISSN:
2077-0472
Subject:
virulence,   etc   ; Nilaparvata lugens; agriculture; population density; rice;     Show all 5 Subjects
Abstract:
... Resistant crop varieties can usually decrease the population density of insect pests; however, they can also easily cause the occurrence of highly virulent pest populations when repeatedly grown. Whether herbivorous insects feeding intermittently on a susceptible variety affects their subsequent virulence has rarely been investigated. In this paper, we examined the variations in the virulence of t ...
DOI:
10.3390/agriculture12070991

15. Effect-Directed Synthesis of PhoP/PhoQ Inhibitors to Regulate Salmonella Virulence

Author:
Ignacio Cabezudo; Carlos A. Lobertti; Eleonora García Véscovi; Ricardo L. E. Furlan
Source:
Journal of agricultural and food chemistry 2022 v.70 no.22 pp. 6755-6763
ISSN:
1520-5118
Subject:
virulence,   etc   ; Salmonella; food chemistry; thin layer chromatography;     Show all 4 Subjects
Abstract:
... Salmonella spp. are among the leading bacterial causes of foodborne infections. The PhoP/PhoQ two-component regulatory system serves as a master virulence regulator in Salmonella. Although PhoP/PhoQ represents an ideal target for disarming Salmonella virulence, it has very few inhibitors reported so far. We describe a novel platform by which an inhibitor was selected out of around 185 compounds di ...
DOI:
10.1021/acs.jafc.2c01087

16. An activity-based probe targeting the streptococcal virulence factor C5a peptidase

Author:
Sankarganesh Krishnamoorthy; Andrea K. Steiger; William C. Nelson; Robert G. Egbert; Aaron T. Wright
Source:
Chemical communications 2022 v.58 no.58 pp. 8113-8116
ISSN:
1364-548X
Subject:
virulence,   etc   ; enzymes; pathogens; phenotype; rapid methods; therapeutics;     Show all 6 Subjects
Abstract:
... Development of profiling strategies to provide high resolution understanding of enzymes involved in bacterial infections remains an important need. These strategies help resolve enzyme mechanisms of actions and can guide therapeutic development. We have developed a selective new activity-based probe (ABP) targeting a highly conserved surface bound enzyme, C5a peptidase, present in several pathogen ...
DOI:
10.1039/d2cc01517j

17. A genome-led study on the pathogenesis of Fusobacterium necrophorum infections

Author:
Gary Thapa; Ambikesh Jayal; Elvis Sikazwe; Thomas Perry; Ali Mohammed Al Balushi; Paul Livingstone
Source:
Gene 2022 v.840 pp. 146770
ISSN:
0378-1119
Subject:
virulence,   etc   ; databases; genes; humans; pathogenesis; phylogeny; uncertainty;     Show all 7 Subjects
Abstract:
... Fusobacterium necrophorum causes a range of mild to life threatening infections and there is uncertainty in terms of diagnosis and treatment due to the lack of knowledge on their pathogenic mechanisms. This study characterised genomes of F. necrophorum to compare their virulence factors and investigate potential infection markers. 27 isolates of F. necrophorum from patients with pharyngotonsilliti ...
DOI:
10.1016/j.gene.2022.146770

18. A review on pilus assembly mechanisms in Gram-positive and Gram-negative bacteria

Author:
Tamilarasi Shanmugasundarasamy; Deenadayalan Karaiyagowder Govindarajan; Kumaravel Kandaswamy
Source:
Cell surface 2022 v.8 pp. 100077
ISSN:
2468-2330
Subject:
virulence,   etc   ; bacteriophages; biofilm; fimbriae; genetic conjugation; pathogenesis;     Show all 6 Subjects
Abstract:
... The surface of Gram-positive and Gram-negative bacteria contains long hair-like proteinaceous protrusion known as pili or fimbriae. Historically, pilin proteins were considered to play a major role in the transfer of genetic material during bacterial conjugation. Recent findings however elucidate their importance in virulence, biofilm formation, phage transduction, and motility. Therefore, it is c ...
DOI:
10.1016/j.tcsw.2022.100077

19. The within-host ecology of insects and their parasites: integrating experiments and mathematical models

Author:
Ann T Tate; Nora KE Schulz
Source:
Current opinion in insect science 2022 v.49 pp. 37-41
ISSN:
2214-5745
Subject:
virulence,   etc   ; fruits; immune system; microbial growth; probability;     Show all 5 Subjects
Abstract:
... The within-host ecology of hosts and their microbes involves complex feedbacks between the host immune system, energetic resources, and microbial growth and virulence, which in turn affect the probability of transmission to new hosts. This complexity can be challenging to address with experiments alone, and mathematical models have traditionally played an essential role in disentangling these proc ...
DOI:
10.1016/j.cois.2021.11.001

20. Draft genome sequences of flavobacterium covae strains LSU-066-04 and LV-359-01

Author:
Churchman Emily M.; Parello Gianni; Lange Miles D.; Farmer Bradley D.; Lafrentz Benjamin R.; Beck Benjamin H.; Liles Mark R.
Source:
Microbiology resource announcements 2022 v.11 no.7 pp. e0035222
ISSN:
2576-098X
Subject:
virulence,   etc   ; Flavobacterium; columnaris disease; fish; genome; microbiology;     Show all 6 Subjects
Abstract:
... Flavobacterium covae is one of four Flavobacterium spp. that causes columnaris disease in teleost fish. Here, we report the draft genomes of two isolates, LSU-066-04 and LV-359-01, and their predicted virulence factors. ...
Handle:
10113/7858485
DOI:
10.1128/mra.00352-22